Add decommission test

[cniackz]

Objective:

To add and execute decommission on every change

Result:

mc admin decommission status myminio/ https://myminio-pool-0-{0...3}.myminio-hl.tenant-lite.svc.cluster.local/export{0...1} --json
┌─────┬───────────────────────────────────────────────────────────────────────────────────────┬────────────────────────┬──────────┐
│ ID  │ Pools                                                                                 │ Raw Drives Usage       │ Status   │
│ 1st │ https://myminio-pool-0-{0...3}.myminio-hl.tenant-lite.svc.cluster.local/export{0...1} │ 74.9% (total: 499 GiB) │ Complete │
│ 2nd │ https://myminio-pool-1-{0...3}.myminio-hl.tenant-lite.svc.cluster.local/export{0...1} │ 74.9% (total: 499 GiB) │ Active   │
└─────┴───────────────────────────────────────────────────────────────────────────────────────┴────────────────────────┴──────────┘

[dvaldivia]

LGTM